Want to get windows and mirrors spotless and streakless? Wash them with a clean sponge dipped in 2 tablespoons borax dissolved in 3 cups water.
To make mirrors sparkle and shine, brew a pot of strong tea, let it cool, and then use it to clean the mirrors. Dampen a soft cloth in the tea and wipe it all over the surface of the mirrors. Then buff with a soft, dry cloth for a sparkly, streak-free shine.